000 00381nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aGrubb, H.F
245 _aEffects of coal mining on the water resources of the tradewater river basin, ke
260 _aWashington
_c1972
300 _a1-83 p.
440 _aUnited States Geological Surv
901 _a124338
942 _cB
_2udc
999 _c10943
_d10943